Sven Erik Alf Sjöberg (21 June 1903, Stockholm – 17 April 1980) was a Swedish theatre and film director. He won the Grand Prix du Festival at the Cannes Film Festival twice: in 1946 for Iris and the Lieutenant (Swedish: Iris och löjtnantshjärta) (part of an eleven-way tie), and in 1951 for his film Miss Julie (Swedish: Fröken Julie) (an adaption of the August Strindberg's play which tied with Vittorio De Sica's Miracle in Milan).
Despite his success with films Torment (1944) and Miss Julie, Sjöberg was above all, and foremost, a stage director; perhaps the greatest at Dramaten (alongside, first, Olof Molander and, later, Ingmar Bergman). He was a First Director of Sweden's Royal Dramatic Theatre in the years 1930-1980, where he staged a large number of remarkable and historic productions. Sjöberg was also a pioneer director for early Swedish TV theatre (his 1955 TV theatre production of Hamlet is a national milestone).
Sjöberg died in a car accident on his way to rehearsal at the Royal Dramatic Theatre in Stockholm.